package com.netty.codec2;


import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;

import java.util.Random;

public class NettyProtoClientHandler2 extends ChannelInboundHandlerAdapter {
    //当通道就绪就会触发该方法
    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        //随机发送一个对象到服务器
        int nextInt = new Random().nextInt(2);
        MyDataInfo.MyMessage message = null;
        if (nextInt == 0){
             message = MyDataInfo.MyMessage.newBuilder()
                            .setDataType(MyDataInfo.MyMessage.DataType.StudentType)
                            .setStudent(MyDataInfo.Student.newBuilder()
                                    .setId(8).setName("玉麒麟,卢俊义").build()).build();
        }else {
            message = MyDataInfo.MyMessage.newBuilder()
                            .setDataType(MyDataInfo.MyMessage.DataType.WorkerType)
                            .setWorker(MyDataInfo.Worker.newBuilder()
                                    .setAge(48).setName("豹子头,林冲").build()).build();

        }

        ctx.writeAndFlush(message);
    }
    //当通道有读取事件时，会触发

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        ByteBuf buf = (ByteBuf) msg;
        System.out.println("服务端回复过来的消息:"+buf.toString(CharsetUtil.UTF_8));
        System.out.println("服务器的地址是: " + ctx.channel().remoteAddress());
    }
    //异常处理
    //关闭通道
    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        cause.printStackTrace();
        ctx.channel().close();
    }
}
